ZoneRx Bars are the ideal snack to help stabilize blood sugar for at least three hours so that you maintain peak mental alertness with a corresponding lack of hunger. Why? Because of the high levels of polyphenols and prebiotics (fermentable fiber) in each ZoneRx Bar help support the release of satiety hormones as well as support optimal gut health.

Our new and improved crispy chocolate bars represent the first significant breakthrough in nutrition bars in the 21st century. Unlike, typical bars you find in health food stores, these ZoneRx bars are true chocolate bars rich in cocoa polyphenols with low levels of heavy metals found in expensive dark chocolate bars and are Non-GMO. That is only possible because we use CacaoRx, our proprietary reduced cocoa extract as our key ingredient in each ZoneRx bar.

What makes each ZoneRx Bar unique?

MaquiRx® and CacaoRx™ — Our proprietary polyphenol extracts provide 375 milligrams of polyphenols to help activate genes that help reduce oxidative stress, inflammation and the rate of aging.

Our unique Controlled Release Nutrition technology allows the polyphenols and fermentable fibers to interact in the ZoneRx bar in optimal synergy for improved gut health. Your end result is three hours of appetite suppression with great taste.

If you want optimal gut wellness, you need a lifetime strategy and products that deliver results you can see, feel and test. The ZoneRx bars are part of that dietary strategy. We call it Evidence-based Wellness®.

Includes 10 Bars
Just $3.24 per bar for Advantage members.

100% Satisfaction Guarantee & 30-Day Money Back Guarantee

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Reviews (71)

Zone bar technology has advanced…

ZoneRx represents the next generation of nutrition bar technology. Dr. Sears introduced the first high-protein nutrition bar in 1992 that was balanced with low glycemic carbohydrates to stabilize blood sugars levels. Today, his new generation of ZoneRx bars is the first to also deliver high-dose polyphenols optimized for gut health.

How ZoneRx Bars work…

Each ZoneRx bar contains 375 mg of a combination of refined low-cadmium chocolate polyphenols plus MaquiRx. Together, these ingredients are needed to promote gut health and anti-inflammatory actions. In addition, these levels of polyphenols coupled with the blood sugar stabilization resulting from the protein-to-glycemic load in the bar significantly increases satiety. No other bar in the world today can come close to these levels of polyphenols that are required for both optimal gut health and maximizing satiety.

71 reviews for Dr. Sears’ ZoneRx Bars – Chocolate (10 bars)

Rated 4 out of 5

Sue –September 2, 2019

Looking forward to trying these! Sounds like a great breakfast or even lunch on the run, which I need pretty often. The ingredients include “dark chocolate.” What percent of cocoa is in that chocolate?

Dr. Sears Zone –September 5, 2019

Sue, Thank you for your comment/question. Cocoa and cocoa butter are the products derived from cocoa beans. Dark chocolate contains some combination of cocoa solids (powder), cocoa butter and sugar. The health benefits attributed to dark chocolate come only from cocoa powder, not cocoa butter, as the powder is the richest source of polyphenols known for their antioxidant and anti-inflammatory properties. While the dark chocolate listed on our label is solely used for flavor, it is a very minor ingredient in the ZoneRx bar. The ingredient of most importance on our nutrition facts panel is CocaoRx which is our proprietary cocoa extract incredibly rich in polyphenols. This is what contributes almost entirely to the high levels (350 mg) of polyphenols in our ZoneRx bars. Thank You, Dr. Sears Zone

Rated 5 out of 5

Charlotte Canida –May 27, 2019

I enjoy your chocolate bars. Feels like I am eating a candy bar. Why is the sugar content so high

Dr. Sears’ Zone Customer Support –May 28, 2019

Charlotte, Thank you for your comment and glad to hear you enjoy Dr. Sears’ ZoneRx bars. For the ZoneRx Bars, Dr. Sears utilizes fructose as the sugar component due to its low glycemic load. The sugars and carbohydrates are necessary in the bar to maintain the balance with the protein to keep insulin levels balanced and a person in the Zone for up to 3 hours. Thank You, Dr. Sears’ Zone

Rated 5 out of 5

Rosie –April 17, 2019

These bars are great. My kids and I love them. Question – I used to buy these at Costco but I don’t see them available. Where else are these sold? They

Dr. Sears’ Zone –April 18, 2019

Rosie, Thank you for your comment/question. Dr. Sears’ ZoneRx Bars are exclusively available through ZoneDiet.com and are not available in stores or at Costco. This allows Dr. Sears to utilize only the highest-end ingredients and provide customers with the freshest products. Thank You, Dr. Sears’ Zone

Rated 5 out of 5

Judy Snyder –March 19, 2019

Taste good. Filling. 1/2 bar plenty for a snack. Wish there was chocolate mint. And I miss the old chocolate raspberry!

Rated 4 out of 5

Tina H –March 11, 2019

I’m just starting out on the zone diet. I don’t have time to make breakfast in the morning, can I eat these bars for breakfast? Are there other quick items that I can eat on the go?

Dr. Sears’ Zone Customer Support –March 11, 2019

Tina, Thank you for your question. Yes, the ZoneRx bars make a great on-the-go breakfast. In addition, we do offer quick and easy to prepare shakes in Chocolate, Vanilla, and Strawberry along with a Honey Almond cereal that are all available in our “Zone Foods” section of the website. You may also want to check out our recipe section for easy to prepare snack ideas that may also help you out. If you have any additional questions please reach out to our support staff at 800-404-8171 and we are happy to help. Thank You, Dr. Sears’ Zone

Rated 5 out of 5

MJ –January 28, 2019

I love them just woundering if They are gluten free?

Dr. Sears Zone Customer Support –January 29, 2019

MJ, Thank you for the question and interest in the ZoneRx bars. We have verified that the ingredient profile in the ZoneRx Bars is gluten free so the bars could be considered such. But, we have not gone through the certification process so it does not state gluten free on the label. Hope this helps you out. Thank You, Dr. Sears’ Zone

Rated 4 out of 5

DW (verified owner)–December 17, 2018

These are good bars only wish they came in a flavor(s) other than chocolate as I’m not a big fan of chocolate.

Rated 5 out of 5

Charles LaRocco –September 17, 2018

Taste is drear and the formula for the bars incrediants deliver the results??

Rated 5 out of 5

Don Hornbeck (verified owner)–September 14, 2018

The ZoneRx Bars are great. They are healthy, filling and they taste great.

Rated 5 out of 5

Francell Bottomfield –August 16, 2018

The taste is great! They taste much better than other types of bars. I am hoping you will come up with other flavors. I enjoy all of your Zone products.

Rated 5 out of 5

Judith Watson –April 11, 2018

tastes great but why does the blurb on the back don’t use these bars if you are 20% overweight?

Zone Customer Support –April 12, 2018

Judith, Thank you for your comment. When starting any dietary program or lifestyle change it is important to check in with a physician to review your overall health. This is especially true if you have any additional risk factors such as being overweight. Thank You, Dr. Sears’ Zone Customer Support

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*Anti-inflammatory nutrition and supplements from Zone Labs, Inc. help reduce diet-induced inflammation, improve athletic performance, and lose excess body fat. Claims on our website have not been evaluated by the Food and Drug Administration. Zone Labs products are not intended to diagnose, treat, cure, or prevent disease. Individual results may vary. Information contained within our blogs are not intended for medical diagnosis or treatment. If you have a medical concern or issue, please consult your physician.